Question: For Karlheinz Stockhausen was spoused was in the end time in the year 1972?
Paraphrase: Who was Karlheinz Stockhausen married to until 1972?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q154556 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1972')) }